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United States Patent | 6,044,189 |
Miller | March 28, 2000 |
The invention is a temperature compensating structure for a fiber Bragg grating (FBG) contained in optical fiber. The structure comprises two plates made of materials having different temperature coefficients of expansion and bonded together. The optical fiber is bonded to the exposed surface of the plate having the lower temperature coefficient. The structure bends with changes in temperature and produces an elongation of the fiber with decreasing temperature.
Inventors: | Miller; Calvin M. (Naples, FL) |
Assignee: | Micron Optics, Inc. (Atlanta, GA) |
Appl. No.: | 984245 |
Filed: | December 3, 1997 |
Current U.S. Class: | 385/37; 385/10; 385/137 |
Intern'l Class: | G02B 006/34 |
Field of Search: | 385/10,13,37,137 |
4806012 | Feb., 1989 | Meltz et al. | 356/32. |
5042898 | Aug., 1991 | Morey et al. | 385/37. |
5380995 | Jan., 1995 | Udd et al. | 250/227. |
5397891 | Mar., 1995 | Udd et al. | 250/227. |
5591965 | Jan., 1997 | Udd | 250/227. |
5615224 | Mar., 1997 | Cohen | 372/36. |
5694503 | Dec., 1997 | Fleming et al. | 385/37. |
5732169 | Mar., 1998 | Riant et al. | 385/24. |
5841920 | Nov., 1998 | Lemaire et al. | 385/37. |
Foreign Patent Documents | |||
0 721 121 A1 | Jul., 1996 | EP | . |
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